Detection rules › Sigma
WMI Event Consumer Created Named Pipe
Detects the WMI Event Consumer service scrcons.exe creating a named pipe
MITRE ATT&CK coverage
| Tactic | Techniques |
|---|---|
| Execution | T1047 Windows Management Instrumentation |
Event coverage
| Provider | Event | Title |
|---|---|---|
| Sysmon | Event ID 17 | PipeEvent (Pipe Created) |
| Sysmon | Event ID 18 | PipeEvent (Pipe Connected) |
Rule body yaml
title: WMI Event Consumer Created Named Pipe
id: 493fb4ab-cdcc-4c4f-818c-0e363bd1e4bb
status: test
description: Detects the WMI Event Consumer service scrcons.exe creating a named pipe
references:
- https://github.com/RiccardoAncarani/LiquidSnake
author: Florian Roth (Nextron Systems)
date: 2021-09-01
modified: 2023-11-30
tags:
- attack.t1047
- attack.execution
logsource:
product: windows
category: pipe_created
definition: 'Note that you have to configure logging for Named Pipe Events in Sysmon config (Event ID 17 and Event ID 18). The basic configuration is in popular sysmon configuration (https://github.com/SwiftOnSecurity/sysmon-config), but it is worth verifying. You can also use other repo, e.g. https://github.com/Neo23x0/sysmon-config, https://github.com/olafhartong/sysmon-modular. How to test detection? You can check powershell script from this site https://svch0st.medium.com/guide-to-named-pipes-and-hunting-for-cobalt-strike-pipes-dc46b2c5f575'
detection:
selection:
Image|endswith: '\scrcons.exe'
condition: selection
falsepositives:
- Unknown
level: medium
Stages and Predicates
Stage 0: condition
selectionStage 1: selection
selection:
Image|endswith: '\scrcons.exe'
Indicators
Each row is a field, operator, and value that the rule matches. The corpus column counts how many other rules in the catalog look for the same combination: high numbers point to widely-used, community-vetted indicators. Blank or 1 shows that the indicator is specific to this rule.
| Field | Kind | Values |
|---|---|---|
Image | ends_with |
|